Comment # 20 on bug 974627 from Max Lin

(In reply to Stefan Hundhammer from comment #16)
> Reassigning to Qt maintainer.
> 
> Max, to put it short, the scenario is this:
> 
> With Qt 5.6, a new window does not seem to get the keyboard focus
> automatically. This behaviour seems to have changed between Qt 5.5 and Qt
> 5.6.
>  
> AFAIK we are using IceWM during installation (needs to be checked).

Dear, it's openSUSE, I'm not openSUSE Qt5 maintainer actually, but I don't mind
it was assigned to me as we've same problem in SLE :)

Anyway, I need any advice from YaST team, according to the result below I
found, where is the right direction I should investigate to?
1) The issue is only happened on installer. I've tried pure qt application
qdbusviewer from qt 5.6, didn't see either focus problem or shortcuts problem.
2) Seems the issue is only appears in *first time* launched installer, I've
tried killed installer and relaunch it, the issue haven't appear in second
time.
3) I assumed the working installer should set focus on the language list(a
YQComboBox?) like [1], but with this issue, it doesn't[2].
4) From what we learnt from Staging:E, this issue a bit random, not every time
we lost focus.
5) I can reproduced the issue with Qt 5.6.0 Alpha1, but not on 5.5 branch from
git, so probably something bad merged into 5.6 but not in 5.5 is the culprit
caused this issue, not sure though.

[1] https://openqa.opensuse.org/tests/175595/modules/welcome/steps/1
[2] https://openqa.opensuse.org/tests/174102/modules/installation_mode/steps/2

Any suggestion are welcome.